TL H 5717
小学二年级班主任工作计划LM199 LM299 LM399 LM3999Precision Reference
新能源规划December 1994
LM199 LM299 LM399 LM3999Precision Reference
General Description岁岁儿
The LM199ries are precision temperature-stabilized monolithic zeners offering temperature coefficients a factor of ten better than high quality reference zeners Construct-ed on a single monolithic chip is a temperature stabilizer circuit and an active reference zener The active circuitry reduces the dynamic impedance of the zener to about 0 5X and allows the zener to operate over 0 5mA to 10mA cur-rent range with esntially no change in voltage or tempera-ture coefficient Further a new subsurface zener structure gives low noi and excellent long term stability compared to ordinary monolithic zeners The package is supplied with a thermal shield to minimize heater power and improve tem-perature regulation
The LM199ries references are exceptionally easy to u and free of the problems that
are often experienced with ordinary zeners There is virtually no hysteresis in reference voltage with temperature cycling Also the LM199is free of voltage shifts due to stress on the leads Finally since the unit is temperature stabilized warm up time is fast
The LM199can be ud in almost any application in place of ordinary zeners with improved performance Some ideal applications are analog to digital converters calibration standards precision voltage or current sources or precision power supplies Further in many cas the LM199can re-place references in existing equipment with a minimum of wiring changes
The LM199ries devices are packaged in a standard her-metic TO-46package inside a thermal shield The LM199is rated for operation from b 55 C to a 125 C while the LM299is rated for operation from b 25 C to a 85 C and the LM399is rated from 0 C to a 70 C
描写秋天的词句
The LM3999is packaged in a standard TO-92package and is rated from 0 C to a 70 C
Features
潍坊金宝乐园
Y Guaranteed 0 0001% C temperature coefficient Y Low dynamic impedance 0 5X
Y Initial tolerance on breakdown voltage 2%Y Sharp breakdown at 400m A
Y Wide operating current 500m A to 10mA Y Wide supply range for temperature stabilizer Y Guaranteed low noi
世界第二高峰是什么>酬谢Y Low power for stabilization 300mW at 25 C Y Long term stability 20ppm
Y
Proven reliability low-stress packaging in TO-46inte-grated-circuit hermetic package for low hysteresis after thermal cycling 33million hours MTBF at T A e a 25 C (TJ e a 86 C
Y Certified long term stability available Y
MIL-STD-883compliant
Connection Diagrams
Metal Can Package (TO-46
TL H 5717–14
Top View
LM199 LM299 LM399(SeeTable on fourth page
NS Package Number H04D
教育研究与实验Plastic Package TO-92
TL H 5717–10
